Automatic carton-body-coating machine



"Nov. 20 1923.

F. CQATES AUTOMATIC CARTON BODY COATING MACHINE Original Filed Aug. 11 1921 2 Sheets-Sheet 1 I F. co TEs AUTOMATIC CARTON BODY COATING MACHINE Original Filed Aug- 11 1921 2 Sheets-Sheet 2 atentedl av. 20, 1923.

STATES PATENT OFFICE.

FREDERICK COATES, OF CINCINNATI, OHIO, ASSIGNOR TO FEDERAL PRODUCTS COM- PANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

AUTOMATIC CARTON-BODY-COATING MACHINE.

Application filed August 11, 1921, Serial No. 491,451. Renewed September 6, 1923.

To all whom it may concern:

Be it known that FREDERICK COATES, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, has invented certain new and useful Improvements in Automatic Carton- Body-Coating Machines, of which the following is a specification.

This invention relates to the manufacture of paper or pulp cartons or cans.

More especially the invention relates to the manufacture of coated or waterproofed cartons or cans and particularly to a machine for performing the coating operation.

. It is well understood that paper cartons are used for the packing and-storing of many liquid and semi-liquid products such as preserves, pickles and a multitude of other like manufactures. When cartons are used for such purposes it is essential that the interior of the cartons should be properly coated with some waterproofing material not susceptible to chemical action by the packed products and which will thoroughly prevent the absorption of moisture by the paper of which the carton is made. It has been common to coat such cartons by dipping but inasmuch as it is not necessary to coat the outside of the cartons a very considerable waste of the coating material results from this dipping and furthermore the applied coat is not even.

One important object of the invention is to provide an improved machine which will automatically coat the interior of paper cartons.

A second important object of the invention is to provide a continuously operating machine of this character so arranged that the duty of the person operating the machine will be confined to merely placing and removing the carton.

A third important object of the invention is to provide an improved arrangement of thissort wherein the carton will be rapidly rotated both during the application of the coating and during the drying so that the coat will be evenly applied and will remain even on the carton during the'drying operation.

With the above and other objects in view, the invention consists in general of certain novel details of construction and combinations of parts hereinafter fully described, i1-

lustrated in the accompanying drawings, and specifically claimed.

In the accompanying drawings, like characters of reference indicate like parts in the several views, and

Figure 1 is a plan view of a carton coating 0 machine constructed in accordance with this invention. a

Figure 2 is a side elevation thereof partly in section.

Figure 3 is a detail section on the line 33 of Figure 1 showing a carton in position.

Figure 4 is a view similar to Figure 3 but with the cartonremoved.

Figure 5 is a detail section on the line 5-5 of Figure'3.

Figure 6 is a detail plan view of a portion of a supplying trough used herewith.

In the embodiment of the invention illustrated in the accompanying drawings there is provided a stand 10 from one side of which extends upward a post or standard 11 having an arm 12 projecting over and in alinement with the center of an open topped tank 13 supported on the stand 10. The post and arm are provided with aligned bearings 14 wherethrough passes a shaft 15 carrying a heavy pulley 16 and loose pulley 17 0n the other end of the shaft 15 is a bevel gear 18 which meshes with the bevel gear 19 fixed on a shaft 20 journalled at its upper end in a bearing 22 on the extremity of the arm 12. There is also provided on this shaft. 20 a spider having oppositely directed arms 23 providedwith up-turned extremities 24 carrying bearings 25. On the inside of the bevel gear 19 are provided bearings 26 aligned with the bearings 25 and these bearings support shafts 27 which project downward through the bearings 25 and carry on their lower ends carton supporting heads. Each of these heads consists of a body 28 from one side of which projects a finger 29 carrying spring clamp fingers 3O arran ed to engage and hold a carton C. Extending downward and outward from the bearing 22 are supporting rods 31 which pass through and are secured to lugs 32 formed on an internal bevel gear ring 33. On the shafts 27 are bevel gears 34 which mesh with the ring 33. By means of this arrangement rotation of the shaft 20 will rotate thearms 23 and through the engagement of the bevel gears 34 and the internal bevel gear 33 the shafts 27 will be inwardly rotated as well as carried around the axes of the shaft 20. sequently the carton holders will be rotated and it is to be noted that when in position on a carton holder the axes of the cartons G are aligned with the axes of respective shafts 27. Supported within the tank 13 is a ring plate 35 which has one portion depressed and channeled out to form a trough 36. Fixed on the shaft is a disk 37 having channel portions 38 diametrically disposed and from these channel portions lead supply pipes 39 which have their ends positioned in parallelism to the axes of the shafts 27. These ends are furthermore positioned to lie just within the carton supported on the carton holder and the ends are perforated laterally as at 40 and terminally as at 41. The trough 36 is fed with the coating material through a pipe 42 and from i the tank 13 extends a drain pipe 43 so that material from the tank may fall into a collecting tank 44 and be drawn ofi by a pipe 45 and conducted in a suitable manner back to the pipe 42, a pump or the like being used :for this purpose but not being deemed necessary to be shown as no claim is made to the conltinuous circulation of the coating materia In the operation of this device the operator places a carton in the carton holder, slipping it over the end of the pipe 39. The machine being started the part of 38 is brought into registry with the trough 36 and the coating material is forced through the supply pipes 39 onto the inside of the cart'on. The latter being inwardly revolved at this time causes an-even distribution of the coating material all over the inner wall of the carton while at the same time any excess material will drop off the edge into the tank 13 and from there will flow, to the collecting tank 44. After the carton has completed one revolution about the shaft 20 the operator removes the coated carton with one hand and places a fresh carton in position with the other hand.

There has thus been provided a simple and efiicient device of the kind described and for the purpose specified.

It is obvious that minor changes may be I made in the form and construction of the invention without departing from the material principles thereof. It is not therefore desired to confine the invention to the exact form herein shown and described, but it is wished to include all such as properly come .Within the scope claimed.

Having thus described the invention, what isclaimed as new, is

1. In a carbon ooating'machine, a. main shaft, a gear mounted on the. said shaft,

Con-

bearings carried by said gear, a spider mounted on the said shaft below the gear, bearings carried by the spider and aligned with the first mentioned bearing, carrier shafts journalled in respective gear and spider supported bearings, carton carrier heads mounted on the lower ends of said shafts, a gear ring surrounding said shaft and immovably supported in position, gears on said carton carrier shafts meshing with the gear ring, means to drive the first mentioned gear and means to supply coating material to the insides of cartons supported on said heads.

2. In a carton coating machine, a main shaft, a bevel gear mounted on said shaft carrier shafts meshing with the internal bevel gear ring, a drive shaft, a bevelled pinion on the drive shaft meshing with the first mentioned bevel gear and means to supply coating material to the insides of cartons supported on said heads.

3. In a carton coating machine, a main shaft, a bevel gear mounted on said shaft adjacent its upper end, a spider. mounted on the said shaft below said bevel gear and having arms extending outward beyond the periphery of the bevel gear, aligned bearin on the bevel gear and on the ends of the spider, carton carrier shafts journalled in said bearings and disposed at a downward and outwardly extending angle to the main shaft, carton carriers fixed to the lower ends of the carrier shafts, an internal bevel gear ring surrounding the main shaft and said carrier shafts, a fixed support for said internal bevel gear ring, bevel gears on the carrier shafts meshing with the internal bevel gear ring, a. drive shaft, a bevelled pinion on the drive shaft meshing with the first mentioned bevel gear, a circular disk carried by the main shaft and having downwardly opening pockets formed therein, a nozzle leading from each of said pockets to a point adjacent the respective carrier, a supply trough arranged for successive registry by said pockets, and means to supply coating material to said supply trough.

In testimony whereof I aifix my signature.

FREDERICK COATES. I 

